The side of a square is 6cm.Find the percentage increase in area if side is trebled?
Area of the square with side 6cm=36
When side is trebled ,side=3*6=18cm
Area=324,Percentage increase in area=[(324-36)/36]*100=(288/36)*100=800%
The side of a square is 5cm.Find the percentage increase in area if side is doubled.
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If diagonal of a square is 12cm,find its area
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